Home / 13,114.78-19,664.88-5,314.48

Finding the Fourth Proportional to 13,114.78, 19,664.88 and 5,314.48

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Solution

The fourth proportional to 13,114.78, 19,664.88 and 5,314.48 is: 7,968.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.78 : 19,664.88 = 5,314.48 : x
  2. Step 2: Convert to fraction form
    13,114.78/19,664.88 = 5,314.48/x
  3. Step 3: Cross multiply
    13,114.78x = 19,664.88 × 5,314.48
  4. Step 4: Simplify right side
    13,114.78x = 104,508,611.46
  5. Step 5: Solve for x
    x = 104,508,611.46/13,114.78
  6. Step 6: Final answer
    x = 7,968.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.